corn cob media

COYKILL

New member
I ordered the Frankford tumbler kit this morning and it comes with the corn cob media and wondering if I will need to blow compressed air through the cases to make sure they are clean inside before reloading.
 
Never heard of doing it that way, but I'm sure it cant hurt.

You definately dont want a piece of corn cob stuck in your flash hole, dont ask me how I know that...

I look through them all now and double check by lightly dropping the neck side down on a table to make sure nothing is stuck in the flashhole. If there is, I just use a tack to push it through.
 
No. If you are trying to get it out of the case especially if it come with the EZ Case Tumbler.

As mentioned above. Are you going to tumble after you de prime? If so then it pops out when you flash hole debur. The center finding portion on the flash hole tools should pop it out.
 
i have a piece of 18 gauge wire that i use to get the corn cob out of the flash hole and i use a nylon brush that is on my rcbs case prep station to get it out of the case.
 
Like others have said if you tumble before you de-prime then NO. If you do it again after you deprime then you will have to clean the primer hole. I use one of my extra decaping rods to pop out any media that get stuck in the flash hole. As far as getting the media out of the case I just hold it lightly against the opening in the tumbler with the case mouth down in the bowl and let the shaking of the tumbler get most of it out. Then tap or shake the mt casings in a bucket and b4 I reload them I tap the case mouth on the bench a couple of times.
 
Corncob media meant for use in blasting cabinets is fine enough to do a beautiful polishing job and will never get stuck in flash holes. I've been using it for a couple of years and am very happy with it.

No corncob media I have ever tried comes close to walnut media for cleaning brass, so I use a two-step process with two tumblers. A little more trouble, maybe...but my ammo is SO purty.
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you must have some real fine media if your not getting any stuck in the flash holes. cuz i always have a couple pieces that have some in it.
 
Me too. I have a short piece of stripped Romex conductor by my tumbler and I poke them clear as I remove them. It ain't a big deal. All I use is corncob with some Frankford Arsenal case polish soaked into it. Does a nice job fairly quickly.

But there are other media options.
 
I just pull the cases out of the still running tumbler and hold them upside down and touch the case head against the threaded center stem. The vibraton makes the corncob media just flows out like water. Works like a dream, even on .17 cases. Any pieces that get stuck in the flash hold I just poke out with one of those cheap give away ball point pens.
 
Hi coykiller,

I use corncob media and yes it will get stuck sometimes. As the guys have already said there are many ways to get it out. I too have used compressed air. BUT, be careful about moisture in the compressed air. After I tried the air a couple times it took longer to redry the cases than just poke the stuff out.
 
Originally Posted By: markleyyou must have some real fine media if your not getting any stuck in the flash holes. cuz i always have a couple pieces that have some in it.


Yes indeed, it is very fine. As I said, it is meant for use in a blasting cabinet. There is no way it can plug up a flash hole.

Trouble-Free Corncob Media

Add a little of your favorite polish and let 'er rip. You won't have to worry about unplugging flash holes!
 
Originally Posted By: RiverRiderOriginally Posted By: markleyyou must have some real fine media if your not getting any stuck in the flash holes. cuz i always have a couple pieces that have some in it.


Yes indeed, it is very fine. As I said, it is meant for use in a blasting cabinet. There is no way it can plug up a flash hole.

Trouble-Free Corncob Media

Add a little of your favorite polish and let 'er rip. You won't have to worry about unplugging flash holes!

Yep...and its alot cheaper than reloading-specific media
 
i have always used the corncob cat littler from petco with 2 spoons of barasso it must be like the blasting media i get little to none in the holes...
 
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Originally Posted By: happyyoteri have always used the corncob cat littler from petco with 2 spoons of barasso it must be like the blasting media i get little to none in the holes...

I might try this
 
That corncob blast media does look pretty good, I'll have to find some here in Colorado, I wouldn't think it would be hard to find.

This might be changing the subject a little but how do you guys tell if the inside of the case is "clean enough", especially with small calibers like a 22 with a large case, and how often do you change out your used media?


Thanks all

 
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Broncstomper, a little sooty carbon residue left inside the case after tumbling is not really an issue. If your powder charge doesn't appear to fill the case any more than usual then there's no need to worry about the inside of the case. I have never seen enough powder residue inside a case to be concerned about. But, the outside of the case needs to be clean to avoid scratching the brass and the interior of your sizing die. Nice shiny brass never hurt a thing.

There is now available a case cleaning media that is actually very small stainless steel rods. It is used in a rotary tumbler with liquid cleaning agents and it will flat CLEAN your brass, inside and out. It does a beautiful job and the cases come out looking brand new but it's not something I would do because of the extra work and expense for little added benefit (in my own opinion).

I have been using the same walnut media since 1996 and I have noticed no decrease in cleaning power. I have been using the same batch of corncob blasting media for two or three years, and it too is still doing its job well.
 
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I use Lyman corncob media, I also add two drops of nu-finish car polish to every other load. One thing I have found useful is tossing a used dryer sheet in with the media on each load, it attracts the carbon powder and misc junk and prolongs the life of my media substantially. I get a very nice finish on my brass with this combination and rarely ever change media any more.
The Lyman media will clog up the flash hole. I use a cheap straight pick such as the one on the left in this pic:

unnamed.jpg
 
Have any of you tried baking soda we have been getting some big parts sand blasted and they use baking soda as their media it works great im thinking about trying it but thought i would ask if anyone had used it before.
 
Here's a pick to give you an idea of some of the sizes listed.
The "24 Grit" Walnut I got at Harbour Freight, to fine for my needs.
The 10-14 is cob from McMaster-Carr
The 8-12 is walnut from McMaster-Carr
I bought a 50lb bag of each from McMaster, the delivery man wasn't very pleased looking! I mix them together about 2 parts cob to 1 part walnut and a little car polish. The walnut really cleans the brass while the cob polishes it.

cob1.jpg
 


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